Clutch.



P. P. AMEX.

CLUTCH.

APPLICANON FILED DEC.J0,1914.

i9 382,83 L, Mmm my 9, 191.6.

3 SHEETS-SHEET L P. P. ALIEX.

CLUTCH.

APPUCATION FILED DEC. 30, 1914.

Patented MayY 9, `1916.

a SHEETS-SHEET 2.

. P. AMEX.

` CLUTCH.

APPLlCATlON FILED DEC.30, 15H4.

latnted May 9, 1916 3 SHEETS-SHEET 3 @www einen rens revestir otros.,

PAUL l. ALIEX, OF NORWOD, MASSACHUSETTS.

CLUTCH.

Application led December 30, 1914.

To ZZ whom t may concern Be it known that l, PAUL l). Amex, a citizen ot the United States residing at Norwood, in the county of Norfolk and State otl Massachusetts, have invented certain new and useful Improvements in Clutches; and I do hereby declare the followingv to be a full. clear, and exact description of the in ventionsuch will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and uset'ul improvements in clutches`r and has for its principal object` to provide a simple and efficient friction clutch which will' eil'ectively lock a pair ot' rotating elements together.

Another object or" the invention to provide a clutch ot the friction type which is particularly simple in construction and designed to torni an effective lock between a drive shaft and the shaft which is to be driven.

A further object of the invention is to provide a novel means for establishing such a connection which may be controlled by the sliding of a spool on one ot' the sha Figure l is a view in elevation of a clutch constructed in accordance with this invention. Fig. 2 is a tace view ot Fig. 1 showing a portion of the clutch in section to more clearly illustrate the details thereot'. Fig'. 3 is a longitudinal sectional Vview et the clutch illustrating' the details ot construction of the several parts. Fig. is a perspective view of' the spider on which the clutch elements are mounted. Fig. 5 is a detail perspective view ot one ot' the outer clutch menlbers, Fig. (3 is a detail perspec tive view ot' one ot' the inner clutch incinbers. and Fig. 7 is a detail perspective view of the operatingr lever and rod.

eferring now to the drawings by `characters of refereni'fe, the numeral 1 designates the drive shat't of the device to which the clutch is secured. This drive shalt mounted in the usual bearings and has keyed thereto the spider 2 which is best illustrated in Fig. 4v. This spider 2 comprises the hub 515 which is splined, keyed, or otherwise secured to the shalt 1 and the arms -l-, which arms extend radially from the hub and are slotted as at 5. rl`hese slots in the arms extend i i if a plane parallel with the longitudinal :unsl ot the hubA and are provided with the grooves' e which are spaced inwardly from the Specification of Letters Patent.

Patented May il, 19216. Serial No. 879,755.

lateral edges ot' the arms and form guides for the members illustrated in Figs. 5 aniv (3. Cach ot' these arins is provided with the transvers aperture 7 through which the sha ft S, on which the gear wheel 9 is mounted, extends. These apertures are designed to permit the shaft to rotate in order that the wheel f) may be turned. rl`he portions ot' the slots between the outer extremities of the grooves (3 are preferably wider as at 10 in order to receive the body of the clutch members above mentioned. Formed on the hub 3 in direct alinernent with the arms are provided the ears 11 which are spaced from each other and apertured as at 12 to receive the pins 13 on which the levers, which will be more fully hereinafter described, are pivotally mounted.

The levers above referred to, are designated by the numeral 1l, and are biturcated at one end to receive the wheel 15 which rotates on the pin 1G. '.lhe opposite ends el the levers are pivotally'connected as at 18 to the stem 1T which is provided with the screw threads 1U at its upper end to receive the nuts 20 to regulate the movement of the lever 14C and the rotation ot the `rear wheel l). This screw threaded portion is designed to extend through the aperture 21 formed in the angular extension 22 ot' the lever 23, which lever is apertured as at 24 to receive the protruding? end ol" the shaft 8 on which the crear wheel 9 is mounted.

ln order that the levers 14 may be operated, there is provided the cone 25 which is provided near one end with the ,groove 26 in which the ring 27 is held. rlhis ringr 27 is designed to be supported on a suitable controlling lever so that the cone 25:1na-y be slid lonoitiulinallv on the shat't 1 so as to move the levers .14 respiattively.

Slidable in the grooves formed in the arms ol the spider are the oute' and inner clutch members designated respectively by the numerals QS and Q5). The outer clutch mouiller 2H comprises the body o() having` toi-med thereon the lateral flanges 3l7 which flanges are (lesigned to slide in the `grooves whileI the body slides in the enlargement '10. 'lhe flanges 31 come Hush with one ot' the iaees ot the body and this 'face is proviifled with a series ot ,gear teeth which are designed to mesh with the gear wheel 9, and upon rotation of said wheel, move the body relatively. Formed at one end ot' the body is the arcuate extension 33 which forms Afriction plate for engagement with the cooperating clutch member, and this plate 3?, is bent as at 34 to conform to the shape of the outer side of the. coperating` clutch member. A. suitable liber or similar friction material 35 is secured to the inner face of the outer clutch niembcr 23 to assist in the irictional engagement ol the several Darts when the derice is in use. y

The inner clutch member, designated by the numeral Qi), comprises the body 3G which is formed with the lateral llanges 3T, which flanges are llush with one ot the faces ol the body, and this face ot' the body is also provided willi the gear teeth 3S whirh are designed to mesh with the teeth ot' the gear wheel 9. rlhis body is formed at one end. with the convex bightl 39 which extends angularly with relation to thc vertical axis of the body and is provided with the liber or similar 'friction generatingl material l0 on its outer surface.

The cooperating clutch member which is designated generally by thc numeral ll, cornprises the hub 42 having,- formed thereon the flange Ll-l, which flange extends radially therefrom .and terminates in the angularly extending' flange 44, the outer la'ce of which inclines as at 11:5 and thence turns downwardly and inclines in the opposite direction as at 4G to conform to the shape of the' outer clutch element herembefore rcerred to. '.lhe inner face L.t7 ol' the flange 4a*- also inclines upwardly and outwardly from the llange and conforms to the, inclination of the plate 3S) of the clutch niember Q9 hercinbeliore referred to. rl`his hub l2 is providcafl with a suitable' bushinjg,I 48 which is preferably groeven as at r9 to provide space for lubricant, and it will thus be seen that the shaift l will be .treo to turn within the hub without rotating' the same. Keyed or otherwise secured to the hub in any suitable manner is the wheel 50 which is to be driven, and this wheel may be a pulley or `gear wheel, whichever is best suited to the purpose ot the user.

lt will be apparent from the foregoing that in use when the user desires that the Wheel be rotated, the controlling,T lever is thrown so as to carry the ring or port toward the clutch which will 'cause the rollers l5 carried by the levers 14 to move the levers on their pivots and thereby lower the inner ends thus causingr the arin 22 to more downwardly which will. rotate the Wheel 9 through the medium of the shaft 8, and this wheel will, upon movement in that direction, cause the jaw members 28 and 29 to close on the flange 44 of the coperatinn clutch member. Thus it will be, seen that the, jaw members will frietionally engage the flange and i'irn'dy lock the whole so that the flange wil be driven in the direction of rotation th clutch, which will also rotate hab ,ieaersi and thereby drive the power wheel 50. ll'hen it is desired that the wheel 50 stop motion, the ring' 2T is moved outwardly which will withdraw the cone and thereby permit the levers Ll to more inwardly, which movement will canse the wheel 9 toaotate in the opposite direction and thereby loosen the jaw member on the llang'e Llll. ln this way it will be clearly apparent that a particularlj.' simple and ellicient clutch is provided which will eslablish a substantially rigid comn'iunieation between the driver and the driven member so that any danger of slipping; is eliminated.

1While inthe foregoing there. has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement oi'lparts as will fall within the spirit and scope of the invention as defined in the appended claims.

What is claimed is:

l. A clutch ol the character described comprisingr a spider; said spider comprising a hub secured to a drive shaft; arms formed on the hub and extending' ,radially there' from; said arms beine; slotted longitudinally; the slots extending in a plane parallel with the loneitudinal axis of the hub; clutch jaws slidable iin the slots; gear teeth carried by the clutch jaws; gear wheels mounted in the slots; said gear wheelsmeshinc; with the gear teeth and designed to more the, clutch jaws upon rotation; ay coperating,T clutch element; a flange/fon the. eooperatinej clutch element: said '/llange e1;- lending; between the clutch jaws and being arranged to be frictionally enojan-cd thereby; shafts on which the gear wheels are. supported; an arm on -said shalt; stems Connected to said arm; levers connected to the opposite ends of said stems, and means to operate the stems and levers whereby the arniswill be operated thereby causingn the wheels to rotate and the clutch jaws to engage the flange.

Q. A clutch of the character described comprising` a spider; said spider comprising a hub: said hub secured lo a drive shaft;

arms formed ou the hub` and extending radially therefrom: said arms being slotted lonnitlulinally: the slots extending in a plane parallel with the longitudinal axis of the hub; clutch jaws slidable in the slots; gear teeth carried bv the clutch jaws; gear wheels mounted in the slots; said gear wheelsmeshing; with the gear teeth and. designed to more the clutch jaws upon rotation: a cooperating clutch element: a flange on theI cooperating clutch element: said llangge extending between the elnleh jaws and being arranged to be frieiionally engaged.thereby; shafts on which the rear wheels are supported; an arm on said shaft; stems connected to said arm; levers connected tothe Lieaesi opposilbe ends of said stems; anal means to operate the levers and stems whereby the arms will be operated; thereby7 causing the wheels to rotate and the clutch jaws to engage the flange and means mounted 0n said stems for regulating the rotation of the gear wheels thereby allowing the clutch jaws to be adjusted with relation to the coperating clutch element.

3. A cluch of the character described comprising a spider; said spider comprising a hub secured to a. drive shaft; radially eX- tending arms formed on the hub; said arms being slotted longitudinally; the slots eX- ending in a plane parallel wih the longitudinal axis of the hub; clutch jaws slidable in said slots; gear teeth carried by `the clutch jaws; gear Wheels mounted in sai slots and jaws being designed to engage the working faces of the flange; and means operatively connected with t e gear wheel to Cause the same to rotate thereby causing the clutch jaws to engage the flange.

In testimony whereof l afx my sigxiature 3e in presence of two witnesses.

'PAUL P. ALIEX.

lVitnesses JOSEPH V. RORKE, PAUL SANsoME. 

